THE CAMEL. 125 
camel is its faculty of abstaining from wa- 
longer than any other animal. This Nature 
enabled it to do by the singular structure 
the stomach, one of the four cavities of 
'^^ich, having nothing to do with the pre- 
^’^I’ation of the food, is destined to serve ex- 
^lusively as a reservoir for water. This cavity 
a pendulous bag, in which there are 
twelve rows of cells, which hold the water ; 
it appears that camels, when accustomed 
go journeys in which they are kept for an 
'^'^ysual number of days without water, ac- 
'I'^ii’e the power of dilating those cells so as to 
'^^ke them contain more than the ordinary 
^'^3-ntity as a supply for the journey. The 
moreover has seven callosities, upon 
y^ich he throws the weight of his body, both 
kneeling down and rising up ; one on the 
*^®ast, two on each of the fore-legs, and one 
each of the hind. These callosities, which 
naturalists have ascribed to the constant 
